🔍 Key Concepts

• Grade A flammable liquid definition in 46 CFR (flash point and boiling point criteria) • Difference between flammable liquid and combustible liquid • Typical cargoes classified as Grade A on USCG cargo/compatibility tables

💭 Think About

• Which of these chemicals are commonly known as very volatile, low–flash point solvents? • Among the four choices, which are more typically thought of as strong-smelling amines (more associated with corrosive/poison hazards) rather than primarily flammable solvents? • Think about which products you might expect to find listed as high-hazard, low-flash-point cargoes in tanker regulations.

✅ Before You Answer

• Verify which cargoes are listed as Grade A flammable liquids in current 46 CFR Part 30–35 tables (or marine chemical tables used in class). • Check the flash point and boiling point of each substance; Grade A will have a very low flash point and high vapor pressure. • Confirm which substances are classified in practice as solvents versus amines; solvents are more likely to be in the Grade A flammable group.